Heeren Brothers Produce in Grand Rapids said Tuesday that it distributed the cantaloupes to small, independent Michigan grocers July 23-26. It says the cantaloupes may be contaminated with Listeria monocytogenes (mahn-oh-sy-TAH’-jeh-neez).

The fruits are Athena Cantaloupes but have no stickers or other markings that identify them as such.

Listeria can cause serious and sometimes fatal infections in young children, the elderly and others with weak immune systems.

Symptoms include high fever, severe headache, stiffness, nausea, abdominal pain and diarrhea. The Kent County Health Department reports no cantaloupe-linked illnesses by Tuesday.

The company says consumers with questions may call 616-452-2101 from 8 a.m.-5 p.m. Monday through Friday.